Answer:

Step-by-step explanation:
Given

Required
Correctly combine the like terms
We have:

Collect like terms (in decreasing degrees of m)


So:

Answer:
By themselves $18.20, $13.60, and together $31.80
Step-by-step explanation:
$2.60 multiplied by 7 equals $18.20
$3.40 multiplied by 4 equals $13.60
Together this equals $31.80
246 divided by 3 should equal 82